Polaroid T-679 User Manual
Film Data Sheet
T-679
Instant Pack Film
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Film Speed
ISO 100/DIN 21
Format
1
3
/2 x 45/8 in. (8.5 x 10.8 cm)
Pack Film
Image Area
7
2
/8 x 33/4 in. (7.3 x 9.5 cm)
Finish
Glossy or silk
Exposures per Unit
8 or 10 exposures per pack
2 packs per box
Development Time
90 seconds at
70°–95°F (21°–35°C)
Description
Medium-speed, medium-contrast, medium-grain, daylight and
electronic flash balanced (5500°K) color print film. This film
features accurate colors and bright whites; sharp, vibrant,
saturated proofs and final art; lower contrast for greater detail
when compared to Polaroid Pro 100 film; improved reciprocity
characteristics, and fast clearing and drying.
Key Applications
• Professional photography (proofing or final art)
• Passport/document photography
• Scientific/industrial photography
ILOP
Compatible Hardware
• Cameras or instruments with CB-103 Back or OEM CB-100
Back (these holders are supplied by medium format camera
manufacturers such as Mamiya, Hasselblad and Konica)
• Polaroid Model 405 Film Holder
Special Instructions
Force-drying prints:
Allow the print to air-dry for at least thirty (30) seconds before
using a forced-hot-air dryer.
Viewing:
When evaluating the color balance of a print, use the same light
source under which the print is to be viewed as a finished product.
Laminating prints:
This film is NOT recommended for use with laminates requiring a
wet print to produce a photo-destruct bond.
Alternative Product
Use Polacolor 669 (for emulsion lift), Studio Polaroid (ISO 125)
Processing Information
Temperature Proc. Equivalent Exposure
°F °C Time Film Speed Adjustment
70-95 21-35 90 100/21 None
65-69 18-20 120 100/21 None
61-64 16-17 150 100/21 None
55-60 13-15 180 100/21 None
(sec.) (ISO/DIN)
Caution
This film uses a small amount of caustic paste. If any paste appears, avoid contact with skin, eyes and mouth
and keep away from children and animals. If you get some paste on your skin, wipe it off immediately, then
wash with water to avoid an alkali burn. If eye contact occurs, quickly wash the area with plenty of water and
see a doctor. Keep discarded materials away from children, animals, clothing and furniture.
Limited Warranty
See information on the film box.
“Polaroid” and “Polacolor” are trademarks of Polaroid Corporation, Waltham, MA 02451 USA.
All other product names may be the property of their respective owners.
Film Data Sheet
Technical Data
T-579, T-679, & T-879
Instant Color Peel-Apart Films
The information in this data sheet
represents the typical performance
of Polaroid’s T-679, T-579 and
T-879 color films. Specific film lots
may vary.
3
Characteristic H&D curves for
normal development
Recommended speed:
ISO/DIN 100/21
o
Recommended processing
time and temperature:
o
90 seconds at 70
o
-35oC)
(21
-95oF
Balance:
Daylight and ele ctr onic
o
flash (5500
K)
Contrast:
Medium
H&D Curves
o
F/21oC
@ 70
Blue
Green
Red
2
Sample Density
1
0
-3
-2 -1
0
Relative Log Exposure
D-Max: The density value for the
film’s darkest black.
D-Min: The lowest density value that
a film exhibits. In prints, the
whiteness of the brightest highlight,
relative to the unprocessed print.
Slope: The positive ratio of the log E
increments of the straight line region
of the curve, as determined by the
1/4-3/4 increment method. The slope
of an H&D curve indicates the overall
contrast of a film: low contrast
slopes less than 1.10; medium
contrast slopes from 1.10 to 1.70;
high contrast slopes greater than
1.70.
At 71o F/21o C: D-Max = 1.8 D-Min = .16 Slope = 1.30
Characteristic H&D curves for
3
2
Sample Density
1
0
-3
cold development
H&D Curves
o
@ 55
F/18oC
Relative Log Exposure
Blue
Green
Red
Sample Density
0-2 -1
Characteristic H&D curves for
3
2
1
0
-3
hot development
H&D Curves
o
F/35oC
@ 95
-2 -1
Relative Log Exposure
Blue
Green
Red
0
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